import logging
import time
from celery.exceptions import MaxRetriesExceededError
from django.core.cache import cache
from django.utils.formats import date_format
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import ungettext_lazy
from c3nav.celery import app
logger = logging.getLogger('c3nav')
@app.task(bind=True, max_retries=10)
def process_map_updates(self):
if self.request.called_directly:
logger.info('Processing map updates by direct command...')
else:
logger.info('Processing map updates...')
from c3nav.mapdata.models import MapUpdate
try:
try:
updates = MapUpdate.process_updates()
except MapUpdate.ProcessUpdatesAlreadyRunning:
if self.request.called_directly:
raise
logger.info('Processing is already running, retrying in 30 seconds.')
raise self.retry(countdown=30)
except Exception:
cache.set('mapdata:last_process_updates_run', (int(time.time()), False), None)
raise
else:
cache.set('mapdata:last_process_updates_run', (int(time.time()), True), None)
except MaxRetriesExceededError:
logger.info('Cannot retry, retries exceeded. Exiting.')
return
if updates:
print()
logger.info(ungettext_lazy('%d map update processed.', '%d map updates processed.', len(updates)) % len(updates))
if updates:
logger.info(_('Last processed update: %(date)s (#%(id)d)') % {
'date': date_format(updates[-1].datetime, 'DATETIME_FORMAT'),
'id': updates[-1].pk,
})
